Scale attachment for vehicles.



J. H. LEVILLAIN.

SCALE ATTACHMENT FOR VEHICLES.

APPLICATION FILED APB. 5, 1910. 1,024,639. w Patented Apr. 3o, 1912.

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-J. H. LEVILLAIN.

lSCALE ATTACHMENT FOR VBHIGLES.

APPLIGATION FILED APB. 5, 1910.

1,024,639. Patented Apr. 30, 1912.

2 SHEETS-SHBET 2.

COLUKBIA PLANDGRAPH C0., WASHINGTON, D. C.

UNITED STATES PATENT OFFICE.

JOHN H. LEVILLAIN, OF LORING, LOUISIANA.

SCALE ATTACHMENT FOR VEHICLES.

To all 'whom t may concern:

Be it known that I, JOHN H. LnvILLAIN, a citizen of the United States, residing at Loring, in the parish of Sabine and State of Louisiana, have. invented new and useful Improvements in ScaleAttachments for Vehicles, of which the following is a specification.

This invention relates to improvements in scale attachments for vehicles and has for one of its objects the provision of a device, whereby the load or weight of the quantity of material placed in the body of a vehicle may be readily determined.

Another object is the provision of a construction wherein the unequal distribution of the load in the body of the vehicle will have no effect Whatever upon the weighing mechanism.

With these and other objects in view, which will more fully hereinafter appear, the present invention consists in certain novel details of construction and arrangement of parts, hereinafter fully described, illustrated in the accompanying drawings and more particularly pointed out in the appended claims; it being understood that various changes in the form, proportion, size, and minor details of the device may be made, within the scope of the appended claims, without departing from the spiritor sacrificing any of the advantages of the invention.

In the accompanying drawings, forming a part of the specification ,"Figure 1 is a plan view of the device showing its application to an ordinary vehicle. Fig. 2 is a side elevation of the same. Fig. 3 is a sectional end view on the line 3 3 of Fig. 1. Fig. 4 is a longitudinal sectional view on the line 4 4 of Fig. 1. Fig. 5 is a. sectional front elevation on the line 5-5 of Fig. 1 and looking in the direction of the arrow. Fig. 6 is a sectional end elevation taken through the indicator.

Similar numerals of reference are employed to designate corresponding parts throughout.

The body of the vehicle is designated in general by the numeral 5, the wheels by the numeral 6, the axle by the numeral 7 and the hound or reach connecting the axles by the numeral 8.

Arranged longitudinally, and in the usual Specification of Letters Patent.

Application filed April 5, 1910.

Patenteaapr. 3o, 1912.

Serial No. 553,520.

manner, of the aXle 7 are front and rear bolsters designated by the numeral 9. These members are channeled, their open sides being presented upwardly, and terminate at their opposite ends in vertical stakes 10 and 11, the said stakes being hollow and provided adjacent to their upper and lower ends with openings in which are rotatably mounted on shafts 12, friction rollers 13, portions of the peripheries of which extend in advance of the inner faces of the stakes. By reference to Figs. 3 and 4 it will be seen that the front and rear bolsters 9 are interiorly provided on either side of their medial portions with upstanding lugs or ears 14. As shown in F ig. 4 it will be seen that these lugs are arranged in pairs and have fulcrumed therebetween levers 15 and 1G. The levers 15 and 16 normally incline down wardly and toward the center of the bolster and at their lower ends are connected by means of a plate 17 having extending therefrom pins for the loose reception of the lower ends of the levers. The upper ends of the levers terminate in oblong heads 18 and 19, the upper sides of which are provided with spurs 2O and 21, which normally lie above the horizontal plane of the upper surfaces of the bolsters. By reference to Fig. 3 it will be seen that the levers are fulcrumed adjacent to their free ends, whereby their lower ends will normally incline downwardly.

A pair of stirrups are shown in Figs. l to 4 inclusive which support the wagon body 5. These stirrups conform to the outline of the bolsters and stakes and are channeled to receive the said bolsters and stakes. The horizontal portions of the stirrups are designated by the numeral 22, and are somewhat less in length than the length of the bolsters, while the vertical side portions of the stirrups are designated by the numerals 23 and 24 and are a trifle greater in length than the length of the stakes 10 and 11. By virtue of the channeling of the stirrups, the said channel being formed on the outer faces of the sides 23 and 24 and lower face of the horizontal side 22, the bolster and stakes will be normally housed by the stir-rups, while the outer faces of the channels of the sides 23 and 24 will bear on the friction rollers 12 and 13. By reference to Fig. 3 it will be seen that by virtue of the spurs 90 and Q1 projecting above the upper faces of the holsters, the horizontal portions 22 of the stirrups will bear on these spurs and tend to force the free ends of the levers downwardly, whereby the connected ends of the said levers will tend to move upwardly.

The mechanism for indicating the weight borne by the stirrups comprises a casing 25. rl`his member, as shown in Fig. 3 is secured to the outer face of one of the front stakes 11 and its outer end is provided with a dial QG in the center of which is `iournaled a shaft 27, the outer end of which is provided with an indicator hand Keyed to the shaft 27 and within the casing is a spur gear 2l), and extending through opposite openings in the casing is a vertically7 disposed rack bar 30, the teeth of which mesh with the spur gear 2). rlie lower end portion of the rack bar 3l) extends through a guide 3l projecting laterally from the lower end portion of the stake 11 and terminates in an eye 33.

An angular-shaped arm 3l has its medial portion pivoted on the interior of the bolster as shown at 35, while the inner end of the same is pivoted to the plate 17 which connects the levei's 15 and 16. The free end portion of the arm 3a extends upwardly and outwardly and through an oblong opening formed in the lower side of the stake 11 and terminates in a downwardly curved end 3G, which lies helow the eye of the rack. Connection between the eye and downwardly curved end 3G is established by means of a link 37, as shown in F ig. 3.

Extending laterally from the upper end portion of the stake 11 is a lug 3S, in vertical alinement with the lug 31. Extending through this lug 3S is a screw-threaded shank 3S), the lower end of which terminates in a hoek ett). connection between the said hook 10 and upper end of the rack bai' 30 is established by means of a helical retractile spring 1-1. The threaded shank 89 is held against movement in the lug 38 by means of a tension nut d2 screwed onto the shank 39 and bearing on the lug 38. With this construction it will be manifest that when sutli cientl weight is placed upon the stirrups to move the same downwardly, the inner or connected ends of the levers 15 and 1G will move upwardly carrying with them the inner end of the arm Sel. rl`he upward movement of the inner end of the arm 3ft will cause the outer or free end to move in an opposite direction, whereby the rack bar 30 will move downwardly against the action of the spring t1 and during its downward movement will rotate the spin' gear Z9 and the indicator hand 2S, whereby the weight necessary to cause this movement o f the parts will be indicated by the hand 2S on the dial QG. The weight indicated by the hand 28 will usually be in hundreds and in order that the fractional parts of a hundred may be determined the following construction is employed By reference to Fig. (i it will be seen thatjournaled in the casing '25 and parallel with the shaft 27 is a shaftand keyed to this shaft l1,5 is a spur gear slt, the teeth of which mesh with a pinion l5 keyed to the shaft 27 and to the rear of the spur gear Q9. Secured to the shaft 43 is a drum @t6 having imprinted thereon the fractional parts of a hundred and formed in the side of the c: sing 25 and in alinement with the middle of the drum is an opening a7, through which a port-ion of the surface of the drum may be seen, so that when the indicator moves in the manner before described rotary movement will be imparted to the drum, whereby a certain number will be visible through the opening L17, thus indicating the fraction of ay hundred contained by the body In order that the unequal distribution of the load in the wagon body will have no effect whatever upon the proper manipulation of the scale the following construction is employed :wBy reference to F ig. 1 it will be seen that extending rearwardly from the medial portion of the frontbolster are a pair of lugs L18 and 19 and fulcrumed between these lugs on a shaft 50, is a bell crank lever 51, one arm of which extends substantially horizontal and through an opening in the bolster and has its inner end pivoted to the upper side of the plate 17, while the opposite or outer arm extends vertically upward. Reference now to Fig. 4 discloses the fact that pivoted in the rear bolster and to the rear of the plate connecting the levers thereof is a bell crank 52, one arm of which inclines downward and is pivoted to the upper side of the plate which connects the levers 15 and 1G in the rear bolster, and the opposite arm of which extends forwardly. Connection between the forwardly extending arm of the bell crank 52 and vertically extending arm of t-he bell crank 51 is established by means of a connecting rod 53 the opposite ends of which are pivoted to said arms. lVith this construction it will be manifestthatwhen the load is distributed over the rear portion Of the body 5, a downward movementon the rear stirrup will cause the forwardly extending arm of the bell crank 52 to move upwardly, carrying with it the connecting rod 53, whereby the bell crank 51 will be rocked and the plate 17 and inner ends of the levers 15 and 1G and arm 34e move upwardly to operate the scale.

From the foregoing, it is evident that I have provided a device which is comparatively simple in structure, and inexpensive in manufacture, embodying few parts and these so arranged that the danger of derangement will be reduced to a minimum.

I claim l. In a wagon scale, a channeled bolster, a channeled stirrup housing said bolster, a pair of levers fulcrumed on said bolster and pivotally connected at one end, a pivoted arm connected at one end with said levers, and a yielding connection between said bolsters and arm and serving to hold the free ends of said levers in engagement with said stirrup.

2. In a wagon scale, a support having hollow vertical portions, rollers journaled on said portions and projecting inwardly thereof, a pair of levers pivotally connected to each other at their inner ends, pivot supports for the outer ends of the levers, a weight holder engaging the outer ends of the levers and having vertical port-ions engaging the rollers, an arm pivotally connected with the inner ends of the levers and pivoted to said support, and a weight indicating device connected with said arm,

whereby the outer ends of the levers are held in normal engagement with t-he weight holder.

3. In combination, asupport having hollow vertical portions, rollers journaled on the inner walls of said hollow vertical portions, a wagon bed having vertical sides engaging said rollers, arms pivotally connected to each other and pivotally supported below said Wagon bed, a lever pivotally supported below said Wagon bed and having pivotl connection with the inner ends of the arms, indicating means connected with said lever and a spring coperating with said indicating means adapted to hold said wagon bed in a normally elevated position.

In testimony whereof I aliiX my signature in presence of two witnesses.

JOHN H. LEVILLAIN.

Witnesses:

T. D. SIDLARRY, J r., A. W. BRYAN.

Gwics of this patent may be obtained for ve cents each, by addressing the Commissioner nf Patents. Washington, D. C. 

